package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.User;
import com.itheima.reggie.service.UserService;
import com.itheima.reggie.utils.ValidateCodeUtils;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import javax.servlet.http.HttpSession;
import java.util.Map;
import java.util.concurrent.TimeUnit;

@RestController
@RequestMapping("/user")
@Slf4j
public class UserController {
    @Autowired
    private UserService userService;

    @Autowired
    private RedisTemplate redisTemplate;

    //用于发送短信
    @PostMapping("/sendMsg")
    public R sendMsg(@RequestBody User user) {
        log.info("发送的验证码给的手机号为{}", user.getPhone());
        //判断电话号码空否
        if (StringUtils.isNotEmpty(user.getPhone())) {
            String code = ValidateCodeUtils.generateValidateCode(4).toString();
            log.info("验证码为{}", code);

            //code存到redis中
            //hs.setAttribute(user.getPhone(), code);
            redisTemplate.opsForValue().set(user.getPhone(), code, 300l, TimeUnit.SECONDS);
            return R.success("手机验证码短信发送成功");
        }
        return R.success("短信发送失败!");
    }

    //用于用户登录
    @PostMapping("/login")
    public R login(@RequestBody() Map map, HttpSession hs) {
        log.info("传过来的参数为{}", map.toString());
        //获取手机号
        String phone = map.get("phone").toString();
        //获取验证码
        String code = map.get("code").toString();

        //从Session中获取保存的验证码
        //Object codeInSession = hs.getAttribute(phone);
        Object codeInSession = redisTemplate.opsForValue().get(phone);

        //进行验证码的比对（页面提交的验证码和Session中保存的验证码比对）
        if (codeInSession != null && codeInSession.equals(code)) {
            //如果能够比对成功，说明登录成功
            LambdaQueryWrapper<User> qw = new LambdaQueryWrapper<>();
            qw.eq(User::getPhone, map.get("phone"));
            User user = userService.getOne(qw);
            if (user == null) {
                //判断当前手机号对应的用户是否为新用户，如果是新用户就自动完成注册
                user = new User();
                user.setPhone(phone);
                user.setStatus(1);
                userService.save(user);
            }
            hs.setAttribute("user", user.getId());

            //将cede在redis中移除
            redisTemplate.delete(phone);
            // log.info("删除code{}",delete);

            return R.success(user);
        }

        return R.error("登陆失败");
    }

    //用于退出登录
    @PostMapping("/loginout")
    public R loginOut(HttpSession hs) {
        log.info("退出的用户id为{}", hs.getAttribute("user"));
        hs.removeAttribute("user");
        return R.success("退出成功!");
    }

}
